806009840136 has 24 divisors (see below), whose sum is σ = 2182943317230. Its totient is φ = 268669946688.

The previous prime is 806009840123. The next prime is 806009840159. The reversal of 806009840136 is 631048900608.

806009840136 is a `hidden beast` number, since 8 + 0 + 600 + 9 + 8 + 4 + 0 + 1 + 36 = 666.

It can be written as a sum of positive squares in only one way, i.e., 441568224036 + 364441616100 = 664506^2 + 603690^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 806009840091 and 806009840100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5597290485 + ... + 5597290628.

Almost surely, 2^806009840136 is an apocalyptic number.

It is an amenable number.

806009840136 is an abundant number, since it is smaller than the sum of its proper divisors (1376933477094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

806009840136 is a wasteful number, since it uses less digits than its factorization.

806009840136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11194581125 (or 11194581118 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 806009840136 in words is "eight hundred six billion, nine million, eight hundred forty thousand, one hundred thirty-six".